Which of the following explains the inability of the nitrates to act as coronary dilators during angina?
A. Nitrates do not act on vascular smooth muscle.
B. The arteries are already maximally dilated by ischemia.
C. The most common route of administration is sublingual.
D. Arteriolar dilation is greater than venodilation is at low-dose ranges.
Answer: B
You might also like to view...
A patient has arrived in the emergency department with suspected acute respiratory distress syndrome (ARDS). The nurse should anticipate which of the following:
A) Prepare to assist with intubating the patient. B) Set up oxygen at 3 L/NP. C) Consult physiotherapy. D) Set up a nebulizer.
Betty Neuman developed the nursing theory that promotes nursing interventions to assist individuals in reaching and maintaining the highest level of wellness possible. What is this theory known as?
a. Adaptation model b. Interpersonal model c. Systems model d. Self-care deficit model
Penicillin is the drug of choice in the treatment of which infections?
a. Urinary tract infections caused by Escherichia coli b. Otitis media caused by Haemophilus c. Group A beta-hemolytic streptococci d. Group B staphylococci
The perinatal nurse understands that certain actions help to decrease the risk of hyperbilirubinemia in the newborn. These actions include:
A) conducting frequent visual assessments. B) accurately documenting the intake and output. C) discontinuing breastfeeding for 24 hours during the first 3 days of life. D) limiting breastfeeding to 10 minutes per breast at each feeding.